intentness

She seemed to him to have been listening with extra-special intentness.

She said nothing, but she looked at him with a strange, quick intentness, almost as though there were a warning on her tongue which at the moment she did not dare to utter.

On every face Burnham saw a “quiet intentness.”

There was an intentness to everyone, an odd seriousness, and a sense of worry—unusual in Village—pervaded the atmosphere.

In the next phase, the Bruins focused on Level 2: self-control, alertness, initiative and intentness.